1973 Citroen SM vs. 2007 Citroen C4
To start off, 2007 Citroen C4 is newer by 34 year(s). Which means there will be less support and parts availability for 1973 Citroen SM. In addition, the cost of maintenance, including insurance, on 1973 Citroen SM would be higher. At 2,670 cc (6 cylinders), 1973 Citroen SM is equipped with a bigger engine. In terms of performance, 1973 Citroen SM (180 HP) has 41 more horse power than 2007 Citroen C4. (139 HP). In normal driving conditions, 1973 Citroen SM should accelerate faster than 2007 Citroen C4.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 1973 Citroen SM (233 Nm) has 33 more torque (in Nm) than 2007 Citroen C4. (200 Nm). This means 1973 Citroen SM will have an easier job in driving up hills or pulling heavy equipment than 2007 Citroen C4.
Compare all specifications:
| 1973 Citroen SM | 2007 Citroen C4 | |
| Make | Citroen | Citroen |
| Model | SM | C4 |
| Year Released | 1973 | 2007 |
| Body Type | Coupe | Minivan |
| Engine Position | Front | Front |
| Engine Size | 2670 cc | 1997 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 180 HP | 139 HP |
| Torque | 233 Nm | 200 Nm |
| Engine Bore Size | 86.9 mm | 85 mm |
| Engine Stroke Size | 74.9 mm | 88 mm |
| Engine Compression Ratio | 9.0:1 | 11.0:1 |
| Drive Type | Front | Front |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Length | 4920 mm | 4280 mm |
| Vehicle Width | 1840 mm | 1840 mm |
| Vehicle Height | 1330 mm | 1630 mm |
| Wheelbase Size | 2960 mm | 2730 mm |
